[INFO] cloning repository https://github.com/JohnScience/get_len_base_10_as_usize
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JohnScience/get_len_base_10_as_usize" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnScience%2Fget_len_base_10_as_usize", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnScience%2Fget_len_base_10_as_usize'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48d05f5a23f3b6ef0f7d9b779ff13f774277ea1e
[INFO] testing JohnScience/get_len_base_10_as_usize against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohnScience%2Fget_len_base_10_as_usize" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JohnScience/get_len_base_10_as_usize on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JohnScience/get_len_base_10_as_usize
[INFO] finished tweaking git repo https://github.com/JohnScience/get_len_base_10_as_usize
[INFO] tweaked toml for git repo https://github.com/JohnScience/get_len_base_10_as_usize written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/JohnScience/get_len_base_10_as_usize already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded take-until v0.1.0
[INFO] [stderr]   Downloaded relative-path v1.6.0
[INFO] [stderr]   Downloaded include_display_mode_tex v0.1.2
[INFO] [stderr]   Downloaded epsi v0.1.1
[INFO] [stderr]   Downloaded epui v0.1.1
[INFO] [stderr]   Downloaded min_max_traits v0.1.0
[INFO] [stderr]   Downloaded zero_based_index v0.1.1
[INFO] [stderr]   Downloaded midpoint v0.1.5
[INFO] [stderr]   Downloaded dd_maths_traits v0.1.7
[INFO] [stderr]   Downloaded primitive_promotion v0.1.3
[INFO] [stderr]   Downloaded is_signed_trait v0.1.0
[INFO] [stderr]   Downloaded get_len_base_10_as_usize_macros v0.1.9
[INFO] [stderr]   Downloaded max_len_base_10_as_usize v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e07b4ec0c7c31cb9cae1fc690139406b7adcdbd24853d1552a38c6c7811771aa
[INFO] running `Command { std: "docker" "start" "-a" "e07b4ec0c7c31cb9cae1fc690139406b7adcdbd24853d1552a38c6c7811771aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e07b4ec0c7c31cb9cae1fc690139406b7adcdbd24853d1552a38c6c7811771aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e07b4ec0c7c31cb9cae1fc690139406b7adcdbd24853d1552a38c6c7811771aa", kill_on_drop: false }`
[INFO] [stdout] e07b4ec0c7c31cb9cae1fc690139406b7adcdbd24853d1552a38c6c7811771aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1831110d4758b50de96f03fafb7ee6de21e6503ff5f32c42610f2f9d9f80f6d
[INFO] running `Command { std: "docker" "start" "-a" "f1831110d4758b50de96f03fafb7ee6de21e6503ff5f32c42610f2f9d9f80f6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling primitive_promotion v0.1.3
[INFO] [stderr]    Compiling epui v0.1.1
[INFO] [stderr]    Compiling relative-path v1.6.0
[INFO] [stderr]    Compiling epsi v0.1.1
[INFO] [stderr]    Compiling max_len_base_10_as_usize v0.1.0
[INFO] [stderr]    Compiling is_signed_trait v0.1.0
[INFO] [stderr]    Compiling min_max_traits v0.1.0
[INFO] [stderr]    Compiling take-until v0.1.0
[INFO] [stderr]    Compiling dd_maths_traits v0.1.7
[INFO] [stderr]    Compiling midpoint v0.1.5
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling include_display_mode_tex v0.1.2
[INFO] [stderr]    Compiling get_len_base_10_as_usize_macros v0.1.9
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/include_display_mode_tex-0.1.2/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_span)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `include_display_mode_tex` due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f1831110d4758b50de96f03fafb7ee6de21e6503ff5f32c42610f2f9d9f80f6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1831110d4758b50de96f03fafb7ee6de21e6503ff5f32c42610f2f9d9f80f6d", kill_on_drop: false }`
[INFO] [stdout] f1831110d4758b50de96f03fafb7ee6de21e6503ff5f32c42610f2f9d9f80f6d